mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 15:50:51 +03:00
272 lines
8.1 KiB
Plaintext
272 lines
8.1 KiB
Plaintext
drop table if exists t1,t2;
|
|
create table t1 (product varchar(32), country_id int not null, year int, profit int);
|
|
insert into t1 values ( 'Computer', 2,2000, 1200),
|
|
( 'TV', 1, 1999, 150),
|
|
( 'Calculator', 1, 1999,50),
|
|
( 'Computer', 1, 1999,1500),
|
|
( 'Computer', 1, 2000,1500),
|
|
( 'TV', 1, 2000, 150),
|
|
( 'TV', 2, 2000, 100),
|
|
( 'TV', 2, 2000, 100),
|
|
( 'Calculator', 1, 2000,75),
|
|
( 'Calculator', 2, 2000,75),
|
|
( 'TV', 1, 1999, 100),
|
|
( 'Computer', 1, 1999,1200),
|
|
( 'Computer', 2, 2000,1500),
|
|
( 'Calculator', 2, 2000,75),
|
|
( 'Phone', 3, 2003,10)
|
|
;
|
|
create table t2 (country_id int primary key, country char(20) not null);
|
|
insert into t2 values (1, 'USA'),(2,'India'), (3,'Finland');
|
|
select product, sum(profit) from t1 group by product;
|
|
product sum(profit)
|
|
Calculator 275
|
|
Computer 6900
|
|
Phone 10
|
|
TV 600
|
|
select product, sum(profit) from t1 group by product with rollup;
|
|
product sum(profit)
|
|
Calculator 275
|
|
Computer 6900
|
|
Phone 10
|
|
TV 600
|
|
NULL 7785
|
|
select product, sum(profit) from t1 group by 1 with rollup;
|
|
product sum(profit)
|
|
Calculator 275
|
|
Computer 6900
|
|
Phone 10
|
|
TV 600
|
|
NULL 7785
|
|
select product, sum(profit),avg(profit) from t1 group by product with rollup;
|
|
product sum(profit) avg(profit)
|
|
Calculator 275 68.7500
|
|
Computer 6900 1380.0000
|
|
Phone 10 10.0000
|
|
TV 600 120.0000
|
|
NULL 7785 519.0000
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year;
|
|
product country_id year sum(profit)
|
|
Calculator 1 1999 50
|
|
Calculator 1 2000 75
|
|
Calculator 2 2000 150
|
|
Computer 1 1999 2700
|
|
Computer 1 2000 1500
|
|
Computer 2 2000 2700
|
|
Phone 3 2003 10
|
|
TV 1 1999 250
|
|
TV 1 2000 150
|
|
TV 2 2000 200
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup;
|
|
product country_id year sum(profit)
|
|
Calculator 1 1999 50
|
|
Calculator 1 2000 75
|
|
Calculator 1 NULL 125
|
|
Calculator 2 2000 150
|
|
Calculator 2 NULL 150
|
|
Calculator NULL NULL 275
|
|
Computer 1 1999 2700
|
|
Computer 1 2000 1500
|
|
Computer 1 NULL 4200
|
|
Computer 2 2000 2700
|
|
Computer 2 NULL 2700
|
|
Computer NULL NULL 6900
|
|
Phone 3 2003 10
|
|
Phone 3 NULL 10
|
|
Phone NULL NULL 10
|
|
TV 1 1999 250
|
|
TV 1 2000 150
|
|
TV 1 NULL 400
|
|
TV 2 2000 200
|
|
TV 2 NULL 200
|
|
TV NULL NULL 600
|
|
NULL NULL NULL 7785
|
|
explain select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup;
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 15 Using temporary; Using filesort
|
|
select product, country_id , sum(profit) from t1 group by product desc, country_id with rollup;
|
|
product country_id sum(profit)
|
|
TV 1 400
|
|
TV 2 200
|
|
TV NULL 600
|
|
Phone 3 10
|
|
Phone NULL 10
|
|
Computer 1 4200
|
|
Computer 2 2700
|
|
Computer NULL 6900
|
|
Calculator 1 125
|
|
Calculator 2 150
|
|
Calculator NULL 275
|
|
NULL NULL 7785
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup limit 5;
|
|
product country_id year sum(profit)
|
|
Calculator 1 1999 50
|
|
Calculator 1 2000 75
|
|
Calculator 1 NULL 125
|
|
Calculator 2 2000 150
|
|
Calculator 2 NULL 150
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup limit 3,3;
|
|
product country_id year sum(profit)
|
|
Calculator 2 2000 150
|
|
Calculator 2 NULL 150
|
|
Calculator NULL NULL 275
|
|
select product, country_id, count(*), count(distinct year) from t1 group by product, country_id;
|
|
product country_id count(*) count(distinct year)
|
|
Calculator 1 2 2
|
|
Calculator 2 2 1
|
|
Computer 1 3 2
|
|
Computer 2 2 1
|
|
Phone 3 1 1
|
|
TV 1 3 2
|
|
TV 2 2 1
|
|
select product, country_id, count(*), count(distinct year) from t1 group by product, country_id with rollup;
|
|
product country_id count(*) count(distinct year)
|
|
Calculator 1 2 2
|
|
Calculator 2 2 1
|
|
Calculator NULL 4 2
|
|
Computer 1 3 2
|
|
Computer 2 2 1
|
|
Computer NULL 5 2
|
|
Phone 3 1 1
|
|
Phone NULL 1 1
|
|
TV 1 3 2
|
|
TV 2 2 1
|
|
TV NULL 5 2
|
|
NULL NULL 15 3
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup having country_id = 1;
|
|
product country_id year sum(profit)
|
|
Calculator 1 1999 50
|
|
Calculator 1 2000 75
|
|
Calculator 1 NULL 125
|
|
Computer 1 1999 2700
|
|
Computer 1 2000 1500
|
|
Computer 1 NULL 4200
|
|
TV 1 1999 250
|
|
TV 1 2000 150
|
|
TV 1 NULL 400
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup having sum(profit) > 200;
|
|
product country_id year sum(profit)
|
|
Calculator NULL NULL 275
|
|
Computer 1 1999 2700
|
|
Computer 1 2000 1500
|
|
Computer 1 NULL 4200
|
|
Computer 2 2000 2700
|
|
Computer 2 NULL 2700
|
|
Computer NULL NULL 6900
|
|
TV 1 1999 250
|
|
TV 1 NULL 400
|
|
TV NULL NULL 600
|
|
NULL NULL NULL 7785
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup having sum(profit) > 7000;
|
|
product country_id year sum(profit)
|
|
NULL NULL NULL 7785
|
|
select concat(product,':',country_id) as 'prod', concat(":",year,":") as 'year',1+1, sum(profit)/count(*) from t1 group by 1,2 with rollup;
|
|
prod year 1+1 sum(profit)/count(*)
|
|
Calculator:1 :1999: 2 50.00
|
|
Calculator:1 :2000: 2 75.00
|
|
Calculator:1 NULL 2 62.50
|
|
Calculator:2 :2000: 2 75.00
|
|
Calculator:2 NULL 2 75.00
|
|
Computer:1 :1999: 2 1350.00
|
|
Computer:1 :2000: 2 1500.00
|
|
Computer:1 NULL 2 1400.00
|
|
Computer:2 :2000: 2 1350.00
|
|
Computer:2 NULL 2 1350.00
|
|
Phone:3 :2003: 2 10.00
|
|
Phone:3 NULL 2 10.00
|
|
TV:1 :1999: 2 125.00
|
|
TV:1 :2000: 2 150.00
|
|
TV:1 NULL 2 133.33
|
|
TV:2 :2000: 2 100.00
|
|
TV:2 NULL 2 100.00
|
|
NULL NULL 2 519.00
|
|
select product, sum(profit)/count(*) from t1 group by product with rollup;
|
|
product sum(profit)/count(*)
|
|
Calculator 68.75
|
|
Computer 1380.00
|
|
Phone 10.00
|
|
TV 120.00
|
|
NULL 519.00
|
|
select left(product,4) as prod, sum(profit)/count(*) from t1 group by prod with rollup;
|
|
prod sum(profit)/count(*)
|
|
Calc 68.75
|
|
Comp 1380.00
|
|
Phon 10.00
|
|
TV 120.00
|
|
NULL 519.00
|
|
select concat(product,':',country_id), 1+1, sum(profit)/count(*) from t1 group by concat(product,':',country_id) with rollup;
|
|
concat(product,':',country_id) 1+1 sum(profit)/count(*)
|
|
Calculator:1 2 62.50
|
|
Calculator:2 2 75.00
|
|
Computer:1 2 1400.00
|
|
Computer:2 2 1350.00
|
|
Phone:3 2 10.00
|
|
TV:1 2 133.33
|
|
TV:2 2 100.00
|
|
NULL 2 519.00
|
|
select product, country , year, sum(profit) from t1,t2 where t1.country_id=t2.country_id group by product, country, year with rollup;
|
|
product country year sum(profit)
|
|
Calculator India 2000 150
|
|
Calculator India NULL 150
|
|
Calculator USA 1999 50
|
|
Calculator USA 2000 75
|
|
Calculator USA NULL 125
|
|
Calculator NULL NULL 275
|
|
Computer India 2000 2700
|
|
Computer India NULL 2700
|
|
Computer USA 1999 2700
|
|
Computer USA 2000 1500
|
|
Computer USA NULL 4200
|
|
Computer NULL NULL 6900
|
|
Phone Finland 2003 10
|
|
Phone Finland NULL 10
|
|
Phone NULL NULL 10
|
|
TV India 2000 200
|
|
TV India NULL 200
|
|
TV USA 1999 250
|
|
TV USA 2000 150
|
|
TV USA NULL 400
|
|
TV NULL NULL 600
|
|
NULL NULL NULL 7785
|
|
select product, `sum` from (select product, sum(profit) as 'sum' from t1 group by product with rollup) as tmp where product is null;
|
|
product sum
|
|
NULL 7785
|
|
select product from t1 where exists (select product, country_id , sum(profit) from t1 as t2 where t1.product=t2.product group by product, country_id with rollup having sum(profit) > 6000);
|
|
product
|
|
Computer
|
|
Computer
|
|
Computer
|
|
Computer
|
|
Computer
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year having country_id is NULL;
|
|
product country_id year sum(profit)
|
|
select concat(':',product,':'), sum(profit),avg(profit) from t1 group by product with rollup;
|
|
concat(':',product,':') sum(profit) avg(profit)
|
|
:Calculator: 275 68.7500
|
|
:Computer: 6900 1380.0000
|
|
:Phone: 10 10.0000
|
|
:TV: 600 120.0000
|
|
:TV: 7785 519.0000
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with cube;
|
|
ERROR 42000: This version of MySQL doesn't yet support 'CUBE'
|
|
explain select product, country_id , year, sum(profit) from t1 group by product, country_id, year with cube;
|
|
ERROR 42000: This version of MySQL doesn't yet support 'CUBE'
|
|
select product, country_id , year, sum(profit) from t1 group by product, country_id, year with cube union all select product, country_id , year, sum(profit) from t1 group by product, country_id, year with rollup;
|
|
ERROR 42000: This version of MySQL doesn't yet support 'CUBE'
|
|
drop table t1,t2;
|
|
CREATE TABLE t1 (i int);
|
|
INSERT INTO t1 VALUES(100);
|
|
CREATE TABLE t2 (i int);
|
|
INSERT INTO t2 VALUES (100),(200);
|
|
SELECT i, COUNT(*) FROM t1 GROUP BY i WITH ROLLUP;
|
|
i COUNT(*)
|
|
100 1
|
|
NULL 1
|
|
SELECT t1.i, t2.i, COUNT(*) FROM t1,t2 GROUP BY t1.i,t2.i WITH ROLLUP;
|
|
i i COUNT(*)
|
|
100 100 1
|
|
100 200 1
|
|
100 NULL 2
|
|
NULL NULL 2
|
|
drop table t1,t2;
|